CA Food & Agric Code Section 74900.1

Persons subject to any local commission established after January 1, 1993, may designate the manner in which assessments that he or she pays to the local commission may be used, including for market development, market research, or production research, or a combination thereof. Persons may so designate during a period specified by the local commission following its establishment, and following any referendums conducted pursuant to Article 8 (commencing with Section 74991).